将人鼠嵌合抗肿瘤细胞核单抗(chTNT-3)共价连接到多柔比星脂质体表面,制得的chTNT-3-空间稳定脂质体粒径分布为(123.1±28.4)nm,多柔比星包封率大于98%。初步稳定性考察表明,在低温(4℃)贮存7d,制品平均粒径及分布变化小,药物泄漏少于3%,免疫活性保持不变,理化性质尚较稳定。
Chimeric TNT-3 monoclonal antibodies (chTNT-3) were covalently linked to the surface of doxorubicinentrapped liposomes to prepare chTNT-3 modified sterically stabilized liposomes. The size distribution of the product was (123.1 ± 28.4) nm and the entrapment efficiency was more than 98 %. The prepared liposomes showed rather stable physicochemical properties when stored at 4℃ for 7 days. Under this condition, liposome size and size distribution did not noticeably change, leakage of drug from liposomes was less than 3 %, and immunoreactivity was maintained.